View of the town of Ophir Loop and the Rio Grande Southern Ophir Loop railroad bridge (butterfly trestle 44A) over Howard Fork (a stream) in San Miguel County, Colorado. Shows the railroad trestle, the RGS railroad depot and the Silver Bell Mine, with its headframe house, aerial tramway and tailings pile, on the side of the Ophir Needles (mountain). The Silver Bell mill is near a dirt road, it is a large building with dormer shaped ventilators.